1. Department of Orthopaedics, Ningbo Sixth Hospital, Ningbo, Zhejiang Province, China
2. Department of Orthopaedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
3. Department of Orthopaedics, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China